Improvement in spark-arresters



THOMAS A. ANDREWS, Jr.- lmproxfemenri'nl Spark-Arrstrs.-

N0. 128'095'k I Patented Juhe 1,8; 1872] y @www mbwmb@ M,

UNITED STATES THOMAS A. ANDREWS, JR., OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN SPARK-ARRESTERS.

Specification forming part of Letters Patent No. 128,095, dated June 18, 1872.

. necessary for the description; Fig. 2, a plan of the same.

a represents the smoke-stack; b, its exterior casin g; t', a casting described in my said Letters Patent. p is the base of the casing b. It is formed so as to have a sharp double inclination, at the bottom ofvwhich theV dischargepipes q and r, having funnel-shaped months, as shown, are permanently attached. To the pipes q and r are intended to be attached other pipes of sufficient length and sectional capacity to conduct the arrested sparks to the ground.

I claim- The smoke-stack, casing, and spark-arresting devices above described or referred to, in combination with the double-inclined base p and the two discharge-pipes q and r, all constructed as set forth.

THOMAS A. ANDREWS, JR. p Witnesses:

WM. R. WRIGHT, M. FILLMORE WALToN. 

